adding more nodes

tests/node_tests/multi_profile.py

@@ -0,0 +1,33 @@
+import numpy as np
+import pytest
+from tests.node_tests._shared import make_field
+
+
+def test_horizontal_center():
+    from backend.nodes.multi_profile import MultipleProfiles
+
+    node = MultipleProfiles()
+    field = make_field(shape=(64, 128))
+    (profile,) = node.process(field, field, row=-1, direction="horizontal", mode="overlay")
+    assert len(profile.data) == 128, f"Expected width 128, got {len(profile.data)}"
+    assert profile.x_axis is not None
+    assert len(profile.x_axis) == len(profile.data)
+
+
+def test_difference_mode():
+    from backend.nodes.multi_profile import MultipleProfiles
+
+    node = MultipleProfiles()
+    data = np.random.default_rng(5).standard_normal((32, 32))
+    field = make_field(data=data)
+    (profile,) = node.process(field, field, row=-1, direction="horizontal", mode="difference")
+    assert np.allclose(profile.data, 0.0), "Difference of same field should be zero"
+
+
+def test_vertical_direction():
+    from backend.nodes.multi_profile import MultipleProfiles
+
+    node = MultipleProfiles()
+    field = make_field(shape=(80, 40))
+    (profile,) = node.process(field, field, row=-1, direction="vertical", mode="overlay")
+    assert len(profile.data) == 80, f"Vertical profile length should be field height (80), got {len(profile.data)}"